conductor/examples/context-tier.yaml at main · microsoft/conductor · GitHub

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# Context Tier Workflow
#
# This example demonstrates selecting a model's long-context (e.g. 1M-token)
# window for heavy-reasoning agents. It shows:
# - A workflow-wide default via `runtime.default_context_tier`
# - A per-agent override via `context_tier` (wins over the default)
# - Composition with `reasoning.effort` — the two are independent and
#   map to two separate `create_session` kwargs
#
# Context tier is a Copilot-provider capability:
# - Copilot SDK: passes `context_tier` ("default" | "long_context") to
#   `create_session` to select the model's context-window tier.
# - Other providers ignore the value.
#
# Use `long_context` for agents that ingest large evidence (multi-MB logs,
# many candidate source files) and would otherwise truncate at the default
# (~200K) tier.
#
# Usage:
#   conductor run examples/context-tier.yaml \
#     --input topic="root-causing a multi-service latency regression"

workflow:
  name: context-tier
  description: Demonstrates workflow-wide and per-agent context-tier configuration
  version: "1.0.0"
  entry_point: triage

  runtime:
    provider: copilot
    # Workflow-wide default applied to every provider-backed agent
    # unless the agent declares its own `context_tier`.
    default_context_tier: default

  input:
    topic:
      type: string
      required: true
      description: An investigation topic that may require ingesting large evidence

agents:
  - name: triage
    description: Lightweight triage that inherits the runtime default tier
    model: claude-opus-4.8
    # No `context_tier` here — inherits `runtime.default_context_tier: default`.
    prompt: |
      Briefly triage the following investigation. Decide whether a deep,
      evidence-heavy analysis pass is warranted (true when it implies sifting
      large logs or many source files).

      Topic: {{ workflow.input.topic }}
    output:
      summary:
        type: string
        description: A short triage summary
      needs_deep_analysis:
        type: boolean
        description: Whether a long-context analysis pass is warranted
    routes:
      - to: analyze
        when: "{{ output.needs_deep_analysis }}"
      - to: $end

  - name: analyze
    description: Deep analysis over large evidence (pinned to the long-context tier)
    model: claude-opus-4.8
    # Per-agent override: this agent always runs on the long-context tier,
    # regardless of the workflow-wide default. Composes with reasoning.
    context_tier: long_context
    reasoning:
      effort: high
    input:
      - workflow.input.topic
      - triage.output.summary
    prompt: |
      Perform a thorough analysis of the investigation below. Assume you may
      need to reason over a large body of evidence.

      **Topic:** {{ workflow.input.topic }}

      **Triage summary:**
      {{ triage.output.summary }}

      Produce a root-cause hypothesis, the evidence that supports it, and the
      next concrete step to confirm it.
    output:
      hypothesis:
        type: string
        description: Root-cause hypothesis
      evidence:
        type: string
        description: Evidence supporting the hypothesis
      next_step:
        type: string
        description: The next concrete step to confirm the hypothesis
    routes:
      - to: $end

output:
  topic: "{{ workflow.input.topic }}"
  summary: "{{ triage.output.summary }}"
  needs_deep_analysis: "{{ triage.output.needs_deep_analysis }}"
  hypothesis: "{% if analyze is defined %}{{ analyze.output.hypothesis }}{% else %}(skipped — no deep analysis needed){% endif %}"
  evidence: "{% if analyze is defined %}{{ analyze.output.evidence }}{% endif %}"
  next_step: "{% if analyze is defined %}{{ analyze.output.next_step }}{% endif %}"